Cryptology ePrint Archive: BibTeX Citation of Report 2008/476

@misc{cryptoeprint:2008:476,
    author = {Erik-Oliver Blass and Anil Kurmus and Refik Molva and Guevara Noubir and Abdullatif Shikfa},
    title = {The $F_f$-Family of Protocols for RFID-Privacy and Authentication},
    howpublished = {Cryptology ePrint Archive, Report 2008/476},
    year = {2008},
    note = {\url{http://eprint.iacr.org/}},
}

You will need the url.sty package (comes with most LaTeX installations) for the last line. Otherwise, remove the \url command.